Prediction of even and odd sunspot cycles | Journal of Space Weather and Space Climate

Topical Issue - Space Climate: Long-term effects of solar variability on the Earth’s environment

Open Access

Figure 8

Relationship between cycle amplitude A and maximum September–October aa³ from a 3-year window before SSN minimum. The blue points indicate odd cycles and red squares the even cycles. The blue line indicates the linear fit to the odd cycles. The green circle indicates the estimated amplitude for cycle 25.

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